c

(S)-(-)-4-Acetoxyfuraneol - weak caramelic odor = (-)-(5S)-2,5-dimethyl-4-oxo-4,5-dihydrofuran-3-yl acetate or (-)-(2S)-2,5-dimethyl-3-oxo-2,3-dihydrofuran-4-yl acetate Ref: Makoto Emura, Yoshihiro Yaguchi, Atsufumi Nakahashi, Daisuke Sugimoto, Nobuaki Miura and Kenji Monde, Stereochemical Studies of Odorous 2-Substituted-3(2H)-furanones by Vibrational Circular Dichroism, J. Agric. Food Chem., 2009, 57 (21), pp 9909–9915

c

(R)-(+)-4-Acetoxyfuraneol - burnt, intense caramel odor = (+)-(5R)-2,5-dimethyl-4-oxo-4,5-dihydrofuran-3-yl acetate or (+)-(2R)-2,5-dimethyl-3-oxo-2,3-dihydrofuran-4-yl acetate Ref: Makoto Emura, Yoshihiro Yaguchi, Atsufumi Nakahashi, Daisuke Sugimoto, Nobuaki Miura and Kenji Monde, Stereochemical Studies of Odorous 2-Substituted-3(2H)-furanones by Vibrational Circular Dichroism, J. Agric. Food Chem., 2009, 57 (21), pp 9909–9915

Ionones, Irones, Damascones & Structurally Related Odorants

Acyclics (Alcohols, Esters, Acids, Aldehydes)

Lactones

Sesquiterpenoid Related Odorants